The S1 Pro Elbow Pads offer more articulation and flexibility than the standard S1 Elbow Pad and are slightly longer to give you more coverage to the elbow.?S1 Pro Elbows?have a very soft, high rebound, highly breathable and moisture wicking fabric on the inside of the elbow which does not retain heat so it keeps you dry and cool.?The?outer shell materials?are made with a highly durable, heavy weight ballistic nylon outer shell and?high grade ABS plastic caps to protect the elbow.?They also feature an inner cup design to keep the elbow in place and prevent slippage.?S1 Pro Elbow Pads have an adjustable top and bottom strap to dial in a perfect fit. S1 Pro Elbow Pads are comfortable, breathable and built to last. The S1 Elbow Pads come in a set with both a right and left included in a quality mesh carrying bag.